Re: 1951 Packard 200, "kabusted 288 engine"

Posted by Steve On 2013/11/12 18:12:47

After rereading different posts about adjusting valves, tomorrow, I will adj the valves cold, then warm (run) the engine and check them while it running. One of two things will happen......no change/change. If there is no change then I will remove the head using Dave Grubbs' directions (thank you) and see what I can determine from the top end.

FWIW, I did do a leak down test but found the results very confusing. # 1 cyl....as I visualized the lifters in the bores, I used a remote S/W and bumped the engine until both lifters were down in their bores. I put 100#s of air into the cyl and there was no leak. As I moved rearward I got to the back 4 cyls and using the same technique....visualizing the lifters down into their bores and adding air, at 40/60 #'s there was a slight bump of the engine and then air would escape from the oil add tube, and 1 to 2 forward cyl. I would shut off the air, re visualize both valves are closed (or at least in the closed position) I would rerun the test and the above problem would present....This happened in 5,6 and 7 cyl.. (not in firing order but just front to back order. So, tomorrow I'll adjust the valves and go from there. I appreciate all the help.